First version of the SOurce SDK 2013

1 files changed, 781 insertions, 0 deletions

diff --git a/mp/src/game/client/in_mouse.cpp b/mp/src/game/client/in_mouse.cpp
new file mode 100644
index 00000000..207e7508
--- /dev/null
+++ b/mp/src/game/client/in_mouse.cpp
@@ -0,0 +1,781 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//

+//

+// Purpose: Mouse input routines

+//

+// $Workfile:     $

+// $Date:         $

+// $NoKeywords: $

+//===========================================================================//

+#if defined( WIN32 ) && !defined( _X360 )

+#define _WIN32_WINNT 0x0502

+#include <windows.h>

+#endif

+#ifdef OSX

+#include <Carbon/Carbon.h>

+#endif

+#include "cbase.h"

+#include "hud.h"

+#include "cdll_int.h"

+#include "kbutton.h"

+#include "basehandle.h"

+#include "usercmd.h"

+#include "input.h"

+#include "iviewrender.h"

+#include "iclientmode.h"

+#include "tier0/icommandline.h"

+#include "vgui/ISurface.h"

+#include "vgui_controls/Controls.h"

+#include "vgui/Cursor.h"

+#include "cdll_client_int.h"

+#include "cdll_util.h"

+#include "tier1/convar_serverbounded.h"

+#include "cam_thirdperson.h"

+#include "inputsystem/iinputsystem.h"

+

+#if defined( _X360 )

+#include "xbox/xbox_win32stubs.h"

+#endif

+

+// memdbgon must be the last include file in a .cpp file!!!

+#include "tier0/memdbgon.h"

+

+// up / down

+#define	PITCH	0

+// left / right

+#define	YAW		1

+

+#ifdef PORTAL

+	bool g_bUpsideDown = false; // Set when the player is upside down in Portal to invert the mouse.

+#endif //#ifdef PORTAL

+

+extern ConVar lookstrafe;

+extern ConVar cl_pitchdown;

+extern ConVar cl_pitchup;

+extern const ConVar *sv_cheats;

+

+class ConVar_m_pitch : public ConVar_ServerBounded

+{

+public:

+	ConVar_m_pitch() : 

+		ConVar_ServerBounded( "m_pitch","0.022", FCVAR_ARCHIVE, "Mouse pitch factor." )

+	{

+	}

+	

+	virtual float GetFloat() const

+	{

+		if ( !sv_cheats )

+			sv_cheats = cvar->FindVar( "sv_cheats" );

+

+		// If sv_cheats is on then it can be anything.

+		float flBaseValue = GetBaseFloatValue();

+		if ( !sv_cheats || sv_cheats->GetBool() )

+			return flBaseValue;

+

+		// If sv_cheats is off than it can only be 0.022 or -0.022 (if they've reversed the mouse in the options).		

+		if ( flBaseValue > 0 )

+			return 0.022f;

+		else

+			return -0.022f;

+	}

+} cvar_m_pitch;

+ConVar_ServerBounded *m_pitch = &cvar_m_pitch;

+

+extern ConVar cam_idealyaw;

+extern ConVar cam_idealpitch;

+extern ConVar thirdperson_platformer;

+

+static ConVar m_filter( "m_filter","0", FCVAR_ARCHIVE, "Mouse filtering (set this to 1 to average the mouse over 2 frames)." );

+ConVar sensitivity( "sensitivity","3", FCVAR_ARCHIVE, "Mouse sensitivity.", true, 0.0001f, true, 10000000 );

+

+static ConVar m_side( "m_side","0.8", FCVAR_ARCHIVE, "Mouse side factor." );

+static ConVar m_yaw( "m_yaw","0.022", FCVAR_ARCHIVE, "Mouse yaw factor." );

+static ConVar m_forward( "m_forward","1", FCVAR_ARCHIVE, "Mouse forward factor." );

+

+static ConVar m_customaccel( "m_customaccel", "0", FCVAR_ARCHIVE, "Custom mouse acceleration:"

+	"\n0: custom accelaration disabled"

+	"\n1: mouse_acceleration = min(m_customaccel_max, pow(raw_mouse_delta, m_customaccel_exponent) * m_customaccel_scale + sensitivity)"

+	"\n2: Same as 1, with but x and y sensitivity are scaled by m_pitch and m_yaw respectively."

+	"\n3: mouse_acceleration = pow(raw_mouse_delta, m_customaccel_exponent - 1) * sensitivity"

+	);

+static ConVar m_customaccel_scale( "m_customaccel_scale", "0.04", FCVAR_ARCHIVE, "Custom mouse acceleration value.", true, 0, false, 0.0f );

+static ConVar m_customaccel_max( "m_customaccel_max", "0", FCVAR_ARCHIVE, "Max mouse move scale factor, 0 for no limit" );

+static ConVar m_customaccel_exponent( "m_customaccel_exponent", "1", FCVAR_ARCHIVE, "Mouse move is raised to this power before being scaled by scale factor.", true, 1.0f, false, 0.0f);

+

+static ConVar m_mousespeed( "m_mousespeed", "1", FCVAR_ARCHIVE, "Windows mouse acceleration (0 to disable, 1 to enable [Windows 2000: enable initial threshold], 2 to enable secondary threshold [Windows 2000 only]).", true, 0, true, 2 );

+static ConVar m_mouseaccel1( "m_mouseaccel1", "0", FCVAR_ARCHIVE, "Windows mouse acceleration initial threshold (2x movement).", true, 0, false, 0.0f );

+static ConVar m_mouseaccel2( "m_mouseaccel2", "0", FCVAR_ARCHIVE, "Windows mouse acceleration secondary threshold (4x movement).", true, 0, false, 0.0f );

+

+#if defined( OSX )

+// On OSX, this needs to stick at 0.

+static ConVar m_rawinput( "m_rawinput", "0", FCVAR_ARCHIVE, "Raw Mouse input is unavailable on OSX", true, 0.0, true, 0.0);

+#else

+static ConVar m_rawinput( "m_rawinput", "0", FCVAR_ARCHIVE, "Use Raw Input for mouse input.");

+#endif

+

+#if DEBUG

+ConVar cl_mouselook( "cl_mouselook", "1", FCVAR_ARCHIVE, "Set to 1 to use mouse for look, 0 for keyboard look." );

+#else

+ConVar cl_mouselook( "cl_mouselook", "1", FCVAR_ARCHIVE | FCVAR_NOT_CONNECTED, "Set to 1 to use mouse for look, 0 for keyboard look. Cannot be set while connected to a server." );

+#endif

+

+ConVar cl_mouseenable( "cl_mouseenable", "1" );

+

+// From other modules...

+void GetVGUICursorPos( int& x, int& y );

+void SetVGUICursorPos( int x, int y );

+

+//-----------------------------------------------------------------------------

+// Purpose: Hides cursor and starts accumulation/re-centering

+//-----------------------------------------------------------------------------

+void CInput::ActivateMouse (void)

+{

+	if ( m_fMouseActive )

+		return;

+

+	if ( m_fMouseInitialized )

+	{

+		if ( m_fMouseParmsValid )

+		{

+#if defined( PLATFORM_WINDOWS )

+			m_fRestoreSPI = SystemParametersInfo (SPI_SETMOUSE, 0, m_rgNewMouseParms, 0) ? true : false;

+#endif

+		}

+		m_fMouseActive = true;

+

+		ResetMouse();

+#if !defined( PLATFORM_WINDOWS )

+		int dx, dy;

+		engine->GetMouseDelta( dx, dy, true );

+#endif

+

+		// Clear accumulated error, too

+		m_flAccumulatedMouseXMovement = 0;

+		m_flAccumulatedMouseYMovement = 0;

+

+		// clear raw mouse accumulated data

+		int rawX, rawY;

+		inputsystem->GetRawMouseAccumulators(rawX, rawY);

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Gives back the cursor and stops centering of mouse

+//-----------------------------------------------------------------------------

+void CInput::DeactivateMouse (void)

+{

+	// This gets called whenever the mouse should be inactive. We only respond to it if we had 

+	// previously activated the mouse. We'll show the cursor in here.

+	if ( !m_fMouseActive )

+		return;

+

+	if ( m_fMouseInitialized )

+	{

+		if ( m_fRestoreSPI )

+		{

+#if defined( PLATFORM_WINDOWS )

+			SystemParametersInfo( SPI_SETMOUSE, 0, m_rgOrigMouseParms, 0 );

+#endif

+		}

+		m_fMouseActive = false;

+		vgui::surface()->SetCursor( vgui::dc_arrow );

+#if !defined( PLATFORM_WINDOWS )

+		// now put the mouse back in the middle of the screen

+		ResetMouse();

+#endif

+

+		// Clear accumulated error, too

+		m_flAccumulatedMouseXMovement = 0;

+		m_flAccumulatedMouseYMovement = 0;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CInput::CheckMouseAcclerationVars()

+{

+	// Don't change them if the mouse is inactive, invalid, or not using parameters for restore

+	if ( !m_fMouseActive ||

+		 !m_fMouseInitialized || 

+		 !m_fMouseParmsValid || 

+		 !m_fRestoreSPI )

+	{

+		return;

+	}

+

+	int values[ NUM_MOUSE_PARAMS ];

+

+	values[ MOUSE_SPEED_FACTOR ]		= m_mousespeed.GetInt();

+	values[ MOUSE_ACCEL_THRESHHOLD1 ]	= m_mouseaccel1.GetInt();

+	values[ MOUSE_ACCEL_THRESHHOLD2 ]	= m_mouseaccel2.GetInt();

+

+	bool dirty = false;

+

+	int i;

+	for ( i = 0; i < NUM_MOUSE_PARAMS; i++ )

+	{

+		if ( !m_rgCheckMouseParam[ i ] )

+			continue;

+

+		if ( values[ i ] != m_rgNewMouseParms[ i ] )

+		{

+			dirty = true;

+			m_rgNewMouseParms[ i ] = values[ i ];

+

+			char const *name = "";

+			switch ( i )

+			{

+			default:

+			case MOUSE_SPEED_FACTOR:

+				name = "m_mousespeed";

+				break;

+			case MOUSE_ACCEL_THRESHHOLD1:

+				name = "m_mouseaccel1";

+				break;

+			case MOUSE_ACCEL_THRESHHOLD2:

+				name = "m_mouseaccel2";

+				break;

+			}

+

+			char sz[ 256 ];

+			Q_snprintf( sz, sizeof( sz ), "Mouse parameter '%s' set to %i\n", name, values[ i ] );

+			DevMsg( "%s", sz );

+		}

+	}

+

+	if ( dirty )

+	{

+		// Update them

+#ifdef WIN32

+		m_fRestoreSPI = SystemParametersInfo( SPI_SETMOUSE, 0, m_rgNewMouseParms, 0 ) ? true : false;

+#endif

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: One-time initialization

+//-----------------------------------------------------------------------------

+void CInput::Init_Mouse (void)

+{

+	if ( CommandLine()->FindParm("-nomouse" ) ) 

+		return; 

+

+	m_flPreviousMouseXPosition = 0.0f;

+	m_flPreviousMouseYPosition = 0.0f;

+	

+	m_fMouseInitialized = true;

+

+	m_fMouseParmsValid = false;

+

+	if ( CommandLine()->FindParm ("-useforcedmparms" ) ) 

+	{

+#ifdef WIN32

+		m_fMouseParmsValid = SystemParametersInfo( SPI_GETMOUSE, 0, m_rgOrigMouseParms, 0 ) ? true : false;

+#else

+		m_fMouseParmsValid = false;

+#endif

+		if ( m_fMouseParmsValid )

+		{

+			if ( CommandLine()->FindParm ("-noforcemspd" ) ) 

+			{

+				m_rgNewMouseParms[ MOUSE_SPEED_FACTOR ] = m_rgOrigMouseParms[ MOUSE_SPEED_FACTOR ];

+

+/*

+				int mouseAccel[3];

+				SystemParametersInfo(SPI_GETMOUSE, 0, &mouseAccel, 0); mouseAccel[2] = 0; 

+				bool ok = SystemParametersInfo(SPI_SETMOUSE, 0, &mouseAccel, SPIF_UPDATEINIFILE); 

+				

+				// Now check registry and close/re-open Control Panel > Mouse and see 'Enhance pointer precision' is OFF 

+				mouseAccel[2] = 1; 

+				ok = SystemParametersInfo(SPI_SETMOUSE, 0, &mouseAccel, SPIF_UPDATEINIFILE); 

+				

+				// Now check registry and close/re-open Control Panel > Mouse and see 'Enhance pointer precision' is ON

+*/

+			}

+			else

+			{

+				m_rgCheckMouseParam[ MOUSE_SPEED_FACTOR ] = 1;

+			}

+

+			if ( CommandLine()->FindParm ("-noforcemaccel" ) ) 

+			{

+				m_rgNewMouseParms[ MOUSE_ACCEL_THRESHHOLD1 ] = m_rgOrigMouseParms[ MOUSE_ACCEL_THRESHHOLD1 ];

+				m_rgNewMouseParms[ MOUSE_ACCEL_THRESHHOLD2 ] = m_rgOrigMouseParms[ MOUSE_ACCEL_THRESHHOLD2 ];

+			}

+			else

+			{

+				m_rgCheckMouseParam[ MOUSE_ACCEL_THRESHHOLD1 ] = true;

+				m_rgCheckMouseParam[ MOUSE_ACCEL_THRESHHOLD2 ] = true;

+			}

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Get the center point of the engine window

+// Input  : int&x - 

+//			y - 

+//-----------------------------------------------------------------------------

+void CInput::GetWindowCenter( int&x, int& y )

+{

+	int w, h;

+	engine->GetScreenSize( w, h );

+

+	x = w >> 1;

+	y = h >> 1;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Recenter the mouse

+//-----------------------------------------------------------------------------

+void CInput::ResetMouse( void )

+{

+	int x, y;

+	GetWindowCenter( x,  y );

+	SetMousePos( x, y );	

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: GetAccumulatedMouse -- the mouse can be sampled multiple times per frame and

+//  these results are accumulated each time. This function gets the accumulated mouse changes and resets the accumulators

+// Input  : *mx - 

+//			*my - 

+//-----------------------------------------------------------------------------

+void CInput::GetAccumulatedMouseDeltasAndResetAccumulators( float *mx, float *my )

+{

+	Assert( mx );

+	Assert( my );

+

+	*mx = m_flAccumulatedMouseXMovement;

+	*my = m_flAccumulatedMouseYMovement;

+

+	if ( m_rawinput.GetBool() )

+	{

+		int rawMouseX, rawMouseY;

+		if ( inputsystem->GetRawMouseAccumulators(rawMouseX, rawMouseY) )

+		{

+			*mx = (float)rawMouseX;

+			*my = (float)rawMouseY;

+		}

+	}

+	

+	m_flAccumulatedMouseXMovement = 0;

+	m_flAccumulatedMouseYMovement = 0;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: GetMouseDelta -- Filters the mouse and stores results in old position

+// Input  : mx - 

+//			my - 

+//			*oldx - 

+//			*oldy - 

+//			*x - 

+//			*y - 

+//-----------------------------------------------------------------------------

+void CInput::GetMouseDelta( float inmousex, float inmousey, float *pOutMouseX, float *pOutMouseY )

+{

+	// Apply filtering?

+	if ( m_filter.GetBool() )

+	{

+		// Average over last two samples

+		*pOutMouseX = ( inmousex + m_flPreviousMouseXPosition ) * 0.5f;

+		*pOutMouseY = ( inmousey + m_flPreviousMouseYPosition ) * 0.5f;

+	}

+	else

+	{

+		*pOutMouseX = inmousex;

+		*pOutMouseY = inmousey;

+	}

+

+	// Latch previous

+	m_flPreviousMouseXPosition = inmousex;

+	m_flPreviousMouseYPosition = inmousey;

+

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Multiplies mouse values by sensitivity.  Note that for windows mouse settings

+//  the input x,y offsets are already scaled based on that.  The custom acceleration, therefore,

+//  is totally engine-specific and applies as a post-process to allow more user tuning.

+// Input  : *x - 

+//			*y - 

+//-----------------------------------------------------------------------------

+void CInput::ScaleMouse( float *x, float *y )

+{

+	float mx = *x;

+	float my = *y;

+

+	float mouse_sensitivity = ( gHUD.GetSensitivity() != 0 ) 

+		?  gHUD.GetSensitivity() : sensitivity.GetFloat();

+

+	if ( m_customaccel.GetInt() == 1 ||  m_customaccel.GetInt() == 2 ) 

+	{ 

+		float raw_mouse_movement_distance = sqrt( mx * mx + my * my );

+		float acceleration_scale = m_customaccel_scale.GetFloat();

+		float accelerated_sensitivity_max = m_customaccel_max.GetFloat();

+		float accelerated_sensitivity_exponent = m_customaccel_exponent.GetFloat();

+		float accelerated_sensitivity = ( (float)pow( raw_mouse_movement_distance, accelerated_sensitivity_exponent ) * acceleration_scale + mouse_sensitivity );

+

+		if ( accelerated_sensitivity_max > 0.0001f && 

+			accelerated_sensitivity > accelerated_sensitivity_max )

+		{

+			accelerated_sensitivity = accelerated_sensitivity_max;

+		}

+

+		*x *= accelerated_sensitivity; 

+		*y *= accelerated_sensitivity; 

+

+		// Further re-scale by yaw and pitch magnitude if user requests alternate mode 2/4

+		// This means that they will need to up their value for m_customaccel_scale greatly (>40x) since m_pitch/yaw default

+		//  to 0.022

+		if ( m_customaccel.GetInt() == 2 || m_customaccel.GetInt() == 4 )

+		{ 

+			*x *= m_yaw.GetFloat(); 

+			*y *= m_pitch->GetFloat(); 

+		} 

+	}

+	else if ( m_customaccel.GetInt() == 3 )

+	{

+		float raw_mouse_movement_distance_squared = mx * mx + my * my;

+		float fExp = MAX(0.0f, (m_customaccel_exponent.GetFloat() - 1.0f) / 2.0f);

+		float accelerated_sensitivity = powf( raw_mouse_movement_distance_squared, fExp ) * mouse_sensitivity;

+

+		*x *= accelerated_sensitivity; 

+		*y *= accelerated_sensitivity; 

+	}

+	else

+	{ 

+		*x *= mouse_sensitivity;

+		*y *= mouse_sensitivity;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: ApplyMouse -- applies mouse deltas to CUserCmd

+// Input  : viewangles - 

+//			*cmd - 

+//			mouse_x - 

+//			mouse_y - 

+//-----------------------------------------------------------------------------

+void CInput::ApplyMouse( QAngle& viewangles, CUserCmd *cmd, float mouse_x, float mouse_y )

+{

+	if ( !((in_strafe.state & 1) || lookstrafe.GetInt()) )

+	{

+#ifdef PORTAL

+		if ( g_bUpsideDown )

+		{

+			viewangles[ YAW ] += m_yaw.GetFloat() * mouse_x;

+		}

+		else

+#endif //#ifdef PORTAL

+		{

+			if ( CAM_IsThirdPerson() && thirdperson_platformer.GetInt() )

+			{

+				if ( mouse_x )

+				{

+					Vector vTempOffset = g_ThirdPersonManager.GetCameraOffsetAngles();

+

+					// use the mouse to orbit the camera around the player, and update the idealAngle

+					vTempOffset[ YAW ] -= m_yaw.GetFloat() * mouse_x;

+					cam_idealyaw.SetValue( vTempOffset[ YAW ] - viewangles[ YAW ] );

+

+					g_ThirdPersonManager.SetCameraOffsetAngles( vTempOffset );

+

+					// why doesn't this work??? CInput::AdjustYaw is why

+					//cam_idealyaw.SetValue( cam_idealyaw.GetFloat() - m_yaw.GetFloat() * mouse_x );

+				}

+			}

+			else

+			{

+				// Otherwize, use mouse to spin around vertical axis

+				viewangles[YAW] -= CAM_CapYaw( m_yaw.GetFloat() * mouse_x );

+			}

+		}

+	}

+	else

+	{

+		// If holding strafe key or mlooking and have lookstrafe set to true, then apply

+		//  horizontal mouse movement to sidemove.

+		cmd->sidemove += m_side.GetFloat() * mouse_x;

+	}

+

+	// If mouselooking and not holding strafe key, then use vertical mouse

+	//  to adjust view pitch.

+	if (!(in_strafe.state & 1))

+	{

+#ifdef PORTAL

+		if ( g_bUpsideDown )

+		{

+			viewangles[PITCH] -= m_pitch->GetFloat() * mouse_y;

+		}

+		else

+#endif //#ifdef PORTAL

+		{

+			if ( CAM_IsThirdPerson() && thirdperson_platformer.GetInt() )

+			{

+				if ( mouse_y )

+				{

+					Vector vTempOffset = g_ThirdPersonManager.GetCameraOffsetAngles();

+

+					// use the mouse to orbit the camera around the player, and update the idealAngle

+					vTempOffset[ PITCH ] += m_pitch->GetFloat() * mouse_y;

+					cam_idealpitch.SetValue( vTempOffset[ PITCH ] - viewangles[ PITCH ] );

+

+					g_ThirdPersonManager.SetCameraOffsetAngles( vTempOffset );

+

+					// why doesn't this work??? CInput::AdjustYaw is why

+					//cam_idealpitch.SetValue( cam_idealpitch.GetFloat() + m_pitch->GetFloat() * mouse_y );

+				}

+			}

+			else

+			{

+				viewangles[PITCH] += m_pitch->GetFloat() * mouse_y;

+			}

+

+			// Check pitch bounds

+			if (viewangles[PITCH] > cl_pitchdown.GetFloat())

+			{

+				viewangles[PITCH] = cl_pitchdown.GetFloat();

+			}

+			if (viewangles[PITCH] < -cl_pitchup.GetFloat())

+			{

+				viewangles[PITCH] = -cl_pitchup.GetFloat();

+			}

+		}

+	}

+	else

+	{

+		// Otherwise if holding strafe key and noclipping, then move upward

+/*		if ((in_strafe.state & 1) && IsNoClipping() )

+		{

+			cmd->upmove -= m_forward.GetFloat() * mouse_y;

+		} 

+		else */

+		{

+			// Default is to apply vertical mouse movement as a forward key press.

+			cmd->forwardmove -= m_forward.GetFloat() * mouse_y;

+		}

+	}

+

+	// Finally, add mouse state to usercmd.

+	// NOTE:  Does rounding to int cause any issues?  ywb 1/17/04

+	cmd->mousedx = (int)mouse_x;

+	cmd->mousedy = (int)mouse_y;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: AccumulateMouse

+//-----------------------------------------------------------------------------

+void CInput::AccumulateMouse( void )

+{

+	if( !cl_mouseenable.GetBool() )

+	{

+		return;

+	}

+

+	if( !cl_mouselook.GetBool() )

+	{

+		return;

+	}

+

+	if ( m_rawinput.GetBool() )

+	{

+		return;

+	}

+

+	int w, h;

+	engine->GetScreenSize( w, h );

+

+	// x,y = screen center

+	int x = w >> 1;	x;

+	int y = h >> 1;	y;

+

+	//only accumulate mouse if we are not moving the camera with the mouse

+	if ( !m_fCameraInterceptingMouse && vgui::surface()->IsCursorLocked() )

+	{

+		//Assert( !vgui::surface()->IsCursorVisible() );

+		// By design, we follow the old mouse path even when using SDL for Windows, to retain old mouse behavior.

+#if defined( PLATFORM_WINDOWS )

+		int current_posx, current_posy;

+

+		GetMousePos(current_posx, current_posy);

+

+		m_flAccumulatedMouseXMovement += current_posx - x;

+		m_flAccumulatedMouseYMovement += current_posy - y;

+		

+#elif defined( USE_SDL ) || defined( OSX )

+		int dx, dy;

+		engine->GetMouseDelta( dx, dy );

+		m_flAccumulatedMouseXMovement += dx;

+		m_flAccumulatedMouseYMovement += dy;

+#else

+#error

+#endif

+		// force the mouse to the center, so there's room to move

+		ResetMouse();

+	}

+	else if ( m_fMouseActive )

+	{

+		// Clamp

+		int ox, oy;

+		GetMousePos( ox, oy );

+		ox = clamp( ox, 0, w - 1 );

+		oy = clamp( oy, 0, h - 1 );

+		SetMousePos( ox, oy );

+	}

+

+

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Get raw mouse position

+// Input  : &ox - 

+//			&oy - 

+//-----------------------------------------------------------------------------

+void CInput::GetMousePos(int &ox, int &oy)

+{

+	GetVGUICursorPos( ox, oy );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Force raw mouse position

+// Input  : x - 

+//			y - 

+//-----------------------------------------------------------------------------

+void CInput::SetMousePos(int x, int y)

+{

+	SetVGUICursorPos(x, y);

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: MouseMove -- main entry point for applying mouse

+// Input  : *cmd - 

+//-----------------------------------------------------------------------------

+void CInput::MouseMove( CUserCmd *cmd )

+{

+	float	mouse_x, mouse_y;

+	float	mx, my;

+	QAngle	viewangles;

+

+	// Get view angles from engine

+	engine->GetViewAngles( viewangles );

+

+	// Validate mouse speed/acceleration settings

+	CheckMouseAcclerationVars();

+

+	// Don't drift pitch at all while mouselooking.

+	view->StopPitchDrift ();

+

+	//jjb - this disables normal mouse control if the user is trying to 

+	//      move the camera, or if the mouse cursor is visible 

+	if ( !m_fCameraInterceptingMouse && 

+		 !vgui::surface()->IsCursorVisible() )

+	{

+		// Sample mouse one more time

+		AccumulateMouse();

+

+		// Latch accumulated mouse movements and reset accumulators

+		GetAccumulatedMouseDeltasAndResetAccumulators( &mx, &my );

+

+		// Filter, etc. the delta values and place into mouse_x and mouse_y

+		GetMouseDelta( mx, my, &mouse_x, &mouse_y );

+

+		// Apply scaling factor

+		ScaleMouse( &mouse_x, &mouse_y );

+

+		// Let the client mode at the mouse input before it's used

+		g_pClientMode->OverrideMouseInput( &mouse_x, &mouse_y );

+

+		// Add mouse X/Y movement to cmd

+		ApplyMouse( viewangles, cmd, mouse_x, mouse_y );

+

+		// Re-center the mouse.

+		ResetMouse();

+	}

+

+	// Store out the new viewangles.

+	engine->SetViewAngles( viewangles );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *mx - 

+//			*my - 

+//			*unclampedx - 

+//			*unclampedy - 

+//-----------------------------------------------------------------------------

+void CInput::GetFullscreenMousePos( int *mx, int *my, int *unclampedx /*=NULL*/, int *unclampedy /*=NULL*/ )

+{

+	Assert( mx );

+	Assert( my );

+

+	if ( !vgui::surface()->IsCursorVisible() )

+	{

+		return;

+	}

+

+	int x, y;

+	GetWindowCenter( x,  y );

+

+	int		current_posx, current_posy;

+

+	GetMousePos(current_posx, current_posy);

+

+	current_posx -= x;

+	current_posy -= y;

+

+	// Now need to add back in mid point of viewport

+	//

+

+	int w, h;

+	vgui::surface()->GetScreenSize( w, h );

+	current_posx += w  / 2;

+	current_posy += h / 2;

+

+	if ( unclampedx )

+	{

+		*unclampedx = current_posx;

+	}

+

+	if ( unclampedy )

+	{

+		*unclampedy = current_posy;

+	}

+

+	// Clamp

+	current_posx = MAX( 0, current_posx );

+	current_posx = MIN( ScreenWidth(), current_posx );

+

+	current_posy = MAX( 0, current_posy );

+	current_posy = MIN( ScreenHeight(), current_posy );

+

+	*mx = current_posx;

+	*my = current_posy;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : mx - 

+//			my - 

+//-----------------------------------------------------------------------------

+void CInput::SetFullscreenMousePos( int mx, int my )

+{

+	SetMousePos( mx, my );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: ClearStates -- Resets mouse accumulators so you don't get a pop when returning to trapped mouse

+//-----------------------------------------------------------------------------

+void CInput::ClearStates (void)

+{

+	if ( !m_fMouseActive )

+		return;

+

+	m_flAccumulatedMouseXMovement = 0;

+	m_flAccumulatedMouseYMovement = 0;

+

+	// clear raw mouse accumulated data

+	int rawX, rawY;

+	inputsystem->GetRawMouseAccumulators(rawX, rawY);

+}